A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Euclid preparation: XLIX. Selecting active galactic nuclei using observed colours
Tekijät: Bisigello, L.; Massimo, M.; Tortora, C.; Fotopoulou, S.; Allevato, V.; Bolzonella, M.; Gruppioni, C.; Pozzetti, L.; Rodighiero, G.; Serjeant, S.; Cunha, P.A.C.; Gabarra, L.; Feltre, A.; Humphrey, A.; La Franca, F.; Landt, H.; Mannucci, F.; Prandoni, I.; Radovich, M.; Ricci, F.; Salvato, M.; Shankar, F.; Stern, D.; Spinoglio, L.; Vergani, D.; Vignali, C.; Zamorani, G.; Yung, L.Y.A.; Charlot, S.; Aghanim, N.; Amara, A.; Andreon, S.; Auricchio, N.; Baldi, M.; Bardelli, S.; Battaglia, P.; Bender, R.; Bonino, D.; Branchini, E.; Brau-Nogue, S.; Brescia, M.; Camera, S.; Capobianco, V.; Carbone, C.; Carretero, J.; Casas, S.; Castander, F.J.; Castellano, M.; Cavuoti, S.; Cimatti, A.; Congedo, G.; Conselice, C.J.; Conversi, L.; Copin, Y.; Corcione, L.; Courbin, F.; Courtois, H.M.; Cropper, M.; Da Silva, A.; Degaudenzi, H.; Di Giorgio, A.M.; Dinis, J.; Dupac, X.; Dusini, S.; Ealet, A.; Farina, M.; Farrens, S.; Ferriol, S.; Frailis, M.; Franceschi, E.; Franzetti, P.; Fumana, M.; Galeotta, S.; Garilli, B.; Gillis, B.; Giocoli, C.; Granett, B.R.; Grazian, A.; Grupp, F.; Guzzo, L.; Haugan, S.V.H.; Holmes, W.; Hook, I.; Hormuth, F.; Hornstrup, A.; Jahnke, K.; Keihänen, E.; Kermiche, S.; Kiessling, A.; Kilbinger, M.; Kitching, T.; Kümmel, M.; Kunz, M.; Kurki-Suonio, H.; Ligori, S.; Lilje, P.B.; Lindholm, V.; Lloro, I.; Maiorano, E.; Mansutti, O.; Marggraf, O.; Markovic, K.; Martinet, N.; Marulli, F.; Massey, R.; Maurogordato, S.; Medinaceli, E.; Mei, S.; Mellier, Y.; Meneghetti, M.; Merlin, E.; Meylan, G.; Moresco, M.; Moscardini, L.; Munari, E.; Niemi, S.M.; Padilla, C.; Paltani, S.; Pasian, F.; Pedersen, K.; Percival, W.J.; Pettorino, V.; Polenta, G.; Poncet, M.; Raison, F.; Rebolo, R.; Renzi, A.; Rhodes, J.; Riccio, G.; Romelli, E.; Roncarelli, M.; Rossetti, E.; Saglia, R.; Sapone, D.; Sartoris, B.; Schirmer, M.; Schneider, P.; Schrabback, T.; Secroun, A.; Seidel, G.; Serrano, S.; Sirignano, C.; Sirri, G.; Stanco, L.; Surace, C.; Tallada-Crespí, P.; Taylor, A.N.; Tereno, I.; Toledo-Moreo, R.; Torradeflot, F.; Tutusaus, I.; Valentijn, E.A.; Valenziano, L.; Vassallo, T.; Wang, Y.; Zoubian, J.; Zucca, E.; Biviano, A.; Bozzo, E.; Colodro-Conde, C.; Di Ferdinando, D.; Fabbian, G.; Graciá-Carpio, J.; Marcin, S.; Mauri, N.; Sakr, Z.; Scottez, V.; Tenti, M.; Akrami, Y.; Baccigalupi, C.; Ballardini, M.; Bethermin, M.; Blanchard, A.; Borgani, S.; Borlaff, A.S.; Bruton, S.; Burigana, C.; Cabanac, R.; Calabro, A.; Cappi, A.; Carvalho, C.S.; Castignani, G.; Castro, T.; Chambers, K.C.; Cooray, A.R.; Coupon, J.; Cucciati, O.; Davini, S.; De Lucia, G.; Desprez, G.; Díaz-Sánchez, A.; Di Domizio, S.; Dole, H.; Escartin Vigo, J.A.; Escoffier, S.; Ferrero, I.; Finelli, F.; Ganga, K.; García-Bellido, J.; Giacomini, F.; Gozaliasl, G.; Gregorio, A.; Hildebrandt, H.; Jiminez Muñoz, A.; Kajava, J.J.E.; Kansal, V.; Karagiannis, D.; Kirkpatrick, C.C.; Legrand, L.; Loureiro, A.; Macias-Perez, J.; Maggio, G.; Magliocchetti, M.; Mainetti, G.; Maoli, R.; Martinelli, M.; Martins, C.J.A.P.; Matthew, S.; Maurin, L.; Metcalf, R.B.; Migliaccio, M.; Monaco, P.; Morgante, G.; Nadathur, S.; Patrizii, L.; Popa, V.; Porciani, C.; Potter, D.; Pöntinen, M.; Rocci, P.F.; Sánchez, A.G.; Schneider, A.; Sereno, M.; Simon, P.; Stadel, J.; Stanford, S.A.; Steinwagner, J.; Testera, G.; Tewes, M.; Teyssier, R.; Toft, S.; Tosi, S.; Troja, A.; Tucci, M.; Valiviita, J.; Viel, M.; Zinchenko, I.A.; Euclid Collaboration
Kustantaja: EDP Sciences
Julkaisuvuosi: 2024
Journal: Astronomy and Astrophysics
Tietokannassa oleva lehden nimi: Astronomy and Astrophysics
Artikkelin numero: A1
Vuosikerta: 691
ISSN: 0004-6361
eISSN: 1432-0746
DOI: https://doi.org/10.1051/0004-6361/202450446
Verkko-osoite: https://doi.org/10.1051/0004-6361/202450446
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/470857055
The Euclid space mission will cover over 14 000 deg2 with two optical and near-infrared spectro-photometric instruments, and is expected to detect around ten million active galactic nuclei (AGN). This unique data set will make a considerable impact on our understanding of galaxy evolution in general, and AGN in particular. For this work we identified the best colour selection criteria for AGN, based only on Euclid photometry or including ancillary photometric observations, such as the data that will be available with the Rubin Legacy Survey of Space and Time (LSST) and observations already available from Spitzer/IRAC. The analysis was performed for unobscured AGN, obscured AGN, and composite (AGN and star-forming) objects. We made use of the spectro-photometric realisations of infrared-selected targets at all-z (SPRITZ) to create mock catalogues mimicking both the Euclid Wide Survey (EWS) and the Euclid Deep Survey (EDS). Using these mock catalogues, we estimated the best colour selection, maximising the harmonic mean (F1) of: (a) completeness, that is, the fraction of AGN correctly selected with respect to the total AGN sample; and (b) purity, that is, the fraction of AGN inside the selection with respect to the selected sample. The selection of unobscured AGN in both Euclid surveys (Wide and Deep) is possible with Euclid photometry alone with F1 = 0.22-0.23 (Wide and Deep), which can increase to F1 = 0.43-0.38 (Wide and Deep) if we limit out study to objects at z > 0.7. Such a selection is improved once the Rubin/LSST filters, that is, a combination of the u, g, r, or z filters, are considered, reaching an F1 score of 0.84 and 0.86 for the EDS and EWS, respectively. The combination of a Euclid colour with the [3.6] - [4.5] colour, which is possible only in the EDS, results in an F1 score of 0.59, improving the results using only Euclid filters, but worse than the selection combining Euclid and LSST colours. The selection of composite (fAGN = 0.05-0.65 at 8-40 μm) and obscured AGN is challenging, with F1 ≤ 0.3 even when including Rubin/LSST or IRAC filters. This is unsurprising since it is driven by the similarities between the broad-band spectral energy distribution of these AGN and star-forming galaxies in the wavelength range 0.3-5 μm.
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Julkaisussa olevat rahoitustiedot:
LB acknowledges financial support from PRIN MIUR 2017 – 20173ML3WW_s and the Large Grant 2022 funding scheme (project "MeerKAT and LOFAR Team up: a Unique Radio Window on Galaxy/AGN co-Evolution"). LB and LP acknowledge financial contribution by grants “Premiale 2015 – MITiC”. The work of DS was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. LB and VA acknowledge support from the INAF Large Grant “AGN and Euclid: a close entanglement”, Ob. Fu. 1.05.23.01.14. LB and IP acknowledge support from INAF under the Large Grant 2022 funding scheme (project “MeerKAT and LOFAR Team up: a Unique Radio Window on Galaxy/AGN co-Evolution”). FS acknowledges partial support from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 860744. The Euclid Consortium acknowledges the European Space Agency and a number of agencies and institutes that have supported the development of Euclid, in particular the Agenzia Spaziale Italiana, the Austrian Forschungsförderungsgesellschaft funded through BMK, the Belgian Science Policy, the Canadian Euclid Consortium, the Deutsches Zentrum für Luft- und Raumfahrt, the DTU Space and the Niels Bohr Institute in Denmark, the French Centre National d’Etudes Spatiales, the Fundação para a Ciência e a Tecnologia, the Hungarian Academy of Sciences, the Ministerio de Ciencia, Innovación y Universidades, the National Aeronautics and Space Administration, the National Astronomical Observatory of Japan, the Netherlandse Onderzoekschool Voor Astronomie, the Norwegian Space Agency, the Research Council of Finland, the Romanian Space Agency, the State Secretariat for Education, Research, and Innovation (SERI) at the Swiss Space Office (SSO), and the United Kingdom Space Agency. A complete and detailed list is available on the Euclid web site (https://www.euclid-ec.org/).
